<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>hello world！</title>
	<link href="base.css" rel="stylesheet" type="text/css" />
	<style type="text/css">
		h2{ color:orange; }
		#hh1{color:yellow;}
		.hh:hover{color:pink;
			cursor:pointer;}
	</style>
	<!-- css样式的注释-->

</head>
<body>
	hello world!
	<!-- 注释-->
	<h1 style="color:purple;font-size:30px">标签 </h1>
	<h2 class="hh"> 这也是标签</h2>
	<h6 id="hh1"> 这也ye是标签</h6>
	<p class="hh">段落 </p>

</body>
</html>